.q-btn
  position relative
  outline 0
  border 0
  vertical-align middle
  cursor pointer
  padding $button-padding
  font-size $button-font-size
  line-height $button-line-height
  text-decoration none
  color inherit
  background transparent
  transition $button-transition
  min-height 2.572em
  box-shadow $button-shadow
  font-weight $button-font-weight
  text-transform uppercase
  button&
    -webkit-appearance button
  a&
    display inline-flex
  .q-icon, .q-spinner
    font-size $button-line-height

  &.disabled
    opacity .7 !important

  &--standard:not(.disabled)
    &:before
      // This places the button active raise shadow behind adjacent elements
      // Active raise shadow will still be visible under adjacent transparent elements, this is ok and coherent with a desired transparency effect.
      // Visible active raise shadow can be removed by specifying a background color to the button
      // Visible active raise shadow can be removed by specifying a flat or outline button type
      content ''
      position absolute
      top 0
      right 0
      bottom 0
      left 0
      border-radius inherit
      transition $button-transition
    &:active
    &.q-btn--active
      &:before
        box-shadow $button-shadow-active


  &--no-uppercase
    text-transform none

  &--rectangle
    border-radius $button-border-radius

  &--outline
    border 1px solid currentColor
    background transparent !important

  &--push
    border-radius $button-push-border-radius
    border-bottom 3px solid rgba(0, 0, 0, .15)
    &:active,
    &.q-btn--active
      &:not(.disabled)
        transform translate3d(0, 3px, 0)
        border-bottom-width 0
    .q-focus-helper, .q-ripple-container
      height auto
      bottom -3px

  &--rounded
    border-radius $button-rounded-border-radius

  &--round
    border-radius 50%
    padding 0
    min-height 0
    height 3em
    width 3em
    min-width 3em
    min-height 3em

  &--flat, &--outline, &--unelevated
    box-shadow none

  &--dense
    padding $button-dense-padding
    min-height 2em
    &.q-btn--round
      padding 0
      height 2.4em
      width 2.4em
      min-height 2.4em
      min-width 2.4em
    .on-left
      margin-right 6px
    .on-right
      margin-left 6px

  &--fab, &--fab-mini
    .q-icon
      font-size 24px
      width 100%
      height 100%
  &--fab
    height 56px
    width 56px
  &--fab-mini
    height 40px
    width 40px

  // workaround for alignment/sizing change when showing loader
  &__content
    transition opacity .3s
    &--hidden
      opacity 0
    &:before
      content ''

  &__progress
    transition transform .3s
    transform-origin top left
    height 100%
    background rgba(255, 255, 255, .25)
    &--dark
      background rgba(0, 0, 0, .2)
